题目内容
①
②-32+(-3)2+(-5)2×(-)-0.32÷|-0.9|
②-32+(-3)2+(-5)2×(-)-0.32÷|-0.9|
①-
①

=
÷(-
)-
×(-
)-0.5×2÷
=-
×
+
×
-0.5×2×2
=-
+
-2
=-
+
-
=-
=-
② -32+(-3)2+(-5)2×(-)-0.32÷|-0.9|
=-9+9+25×(-)-0.09÷0.9
=0-20-0.1
=-20.1
=
=-
=-
=-
=-
=-
② -32+(-3)2+(-5)2×(-)-0.32÷|-0.9|
=-9+9+25×(-)-0.09÷0.9
=0-20-0.1
=-20.1
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